Microsoft Server Security Advisories & CVEs
1724 advisories tracked · Microsoft Security Update Guide (MSRC) · direct feeds checked every minute; rate-limited backstops use a safe source cadence
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Official source
Microsoft Security Update Guide (MSRC)
Polled via the official MSRC Security Update Guide RSS feed (api.msrc.microsoft.com, no credentials required), scoped to SERVER products only — Windows Server, Exchange, SQL Server, SharePoint, Hyper-V and companion server roles. Client-only CVEs (Edge, Office apps, consumer Windows) are filtered out via the monthly CVRF document's affected-product list.
Latest MS Server advisories
High [CVE-2026-57089] Windows SMB Server Network Transport Driver (srvnet.sys) Remote Code Execution Vulnerability
Windows SMB Server Network Transport Driver (srvnet.sys) Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-57088] Extensible Storage Engine (ESENT) Elevation of Privilege Vulnerability
Extensible Storage Engine (ESENT) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-57096] Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability
Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 1 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-58277] Microsoft SharePoint Elevation of Privilege Vulnerability
Microsoft SharePoint Elevation of Privilege Vulnerability Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Server 2019.
High [CVE-2026-58527] Windows Runtime Elevation of Privilege Vulnerability
Windows Runtime Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-58531] Windows SMB Elevation of Privilege Vulnerability
Windows SMB Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-58537] Microsoft NAT Helper Components (ipnathlp.dll) Elevation of Privilege Vulnerability
Microsoft NAT Helper Components (ipnathlp.dll) Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-58534] Windows Input Method Editor (IME) Elevation of Privilege Vulnerability
Windows Input Method Editor (IME) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-58544] Windows Management Services Elevation of Privilege Vulnerability
Windows Management Services Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-58541] Microsoft DWM Core Library Elevation of Privilege Vulnerability
Microsoft DWM Core Library Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-58619] Windows Sensor Data Service Elevation of Privilege Vulnerability
Windows Sensor Data Service Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-58626] Windows Remote Desktop Services Remote Code Execution Vulnerability
Windows Remote Desktop Services Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-58628] Windows Wireless Network Manager Elevation of Privilege Vulnerability
Windows Wireless Network Manager Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-58629] DirectX Graphics Kernel Elevation of Privilege Vulnerability
DirectX Graphics Kernel Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-58632] Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-58637] Windows Client-Side Caching Elevation of Privilege Vulnerability
Windows Client-Side Caching Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-47304] .NET Security Feature Bypass Vulnerability
.NET Security Feature Bypass Vulnerability Affected products named by the advisory: Microsoft.NET Framework 4.8 on Windows Server 2016; Microsoft.NET Framework 4.8 on Windows Server 2012; Microsoft.NET Framework 4.8 on Windows Server 2012 R2; Microsoft.NET Framework 3.5 AND 4.8 on Windows Server 2019; and 4 more. Affected products named by the advisory: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012.
High [CVE-2026-50525] .NET Denial of Service Vulnerability
.NET Denial of Service Vulnerability Affected products named by the advisory: Microsoft.NET Framework 4.8 on Windows Server 2016; Microsoft.NET Framework 4.8 on Windows Server 2012; Microsoft.NET Framework 4.8 on Windows Server 2012 R2; Microsoft.NET Framework 3.5 AND 4.8 on Windows Server 2019; and 4 more. Affected products named by the advisory: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012.
High [CVE-2026-50649] .NET Remote Code Execution Vulnerability
.NET Remote Code Execution Vulnerability Affected products named by the advisory: Microsoft.NET Framework 4.8 on Windows Server 2016; Microsoft.NET Framework 4.8 on Windows Server 2012; Microsoft.NET Framework 4.8 on Windows Server 2012 R2; Microsoft.NET Framework 3.5 AND 4.8 on Windows Server 2019; and 4 more. Affected products named by the advisory: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012.
Medium [CVE-2026-55121] Microsoft Office Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally. Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Server 2019; Microsoft SharePoint Server Subscription Edition.